GitLab

* sysdep.c (sys_subshell) [!defined DOS_NT]: Diagnose chdir
failure and exit.
(sys_subshell) [defined DOS_NT]: Mark with a FIXME the two
remaining unchecked chdir calls in this function; some DOS/NT
expert needs to fix them.
* emacs.c (main): Mark with a FIXME the unchecked chdir calls
in this function; some NextStep expert needs to fix them.